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AMC7820

Features: · 100kHz SAMPLING RATE 12-BIT ADC· 8 ANALOG INPUT CHANNELS· THREE 12-BIT DACS· NINE OPERATIONAL AMPLIFIERS· THERMISTOR CURRENT SOURCE· INTERNAL 2.5V REFERENCE· SPI SERIAL INTERFACE· 3V LOGIC COMPATIBLE· SINGLE +5V SUPPLY· LOW POWER: 40mW· TQFP-48 PACKAGEApplication· CW LASER AND PUMP LAS...

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SeekIC No. : 004284618 Detail

AMC7820: Features: · 100kHz SAMPLING RATE 12-BIT ADC· 8 ANALOG INPUT CHANNELS· THREE 12-BIT DACS· NINE OPERATIONAL AMPLIFIERS· THERMISTOR CURRENT SOURCE· INTERNAL 2.5V REFERENCE· SPI SERIAL INTERFACE· 3V LOG...

AMC7820 Data Sheet

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Part Number:
AMC7820
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

· 100kHz SAMPLING RATE 12-BIT ADC
· 8 ANALOG INPUT CHANNELS
· THREE 12-BIT DACS
· NINE OPERATIONAL AMPLIFIERS
· THERMISTOR CURRENT SOURCE
· INTERNAL 2.5V REFERENCE
· SPI SERIAL INTERFACE
· 3V LOGIC COMPATIBLE
· SINGLE +5V SUPPLY
· LOW POWER: 40mW
· TQFP-48 PACKAGE


Application

· CW LASER AND PUMP LASER CURRENT CONTROL IN DWDM
· TEC COOLER CURRENT CONTROL IN DWDM
· OPTICAL POWER MONITORING
· TUNABLE LASER


Pinout

Connection Diagram


Specifications

AVDD, DVDD, BVDD to GND .................................................. 0.3V to +6V
Digital Input Voltage to GND ................................. 0.3V to BVDD + 0.3V
Analog Input Voltage to GND ................................ 0.3V to AVDD + 0.3V
Input Current: Continuous .............................................................. ±20mA
Momentary ............................................................ ±100mA
Operating Temperature Range ...................................... 40°C to +105°C
Storage Temperature Range ......................................... 65°C to +150°C
Junction Temperature (TJ Max) .................................................... +150°C
TQFP Package
Power Dissipation ....................................................... (TJ Max TA)/JA
JC Thermal Impedance ............................................................. 15°C/W
JA Thermal Impedance ............................................................. 60°C/W
Lead Temperature (soldering)
Vapor Phase (60s) .................................................................. +220°C
Infrared (15s) ........................................................................... +220°C
NOTE: (1) Stresses above those listed under "Absolute Maximum Ratings"
may cause permanent damage to the device. Exposure to absolute maximum
conditions for extended periods may affect device reliability.


Description

The AMC7820 is a complete analog monitoring and control circuit that includes an 8-channel, 12-bit Analog-to-Digital Converter (ADC), three 12-bit Digital-to-Analog Converters (DACs), nine operational amplifiers, a thermistor current source, an internal +2.5V reference, and an SPI™ serial interface. External reference may be applied. Typical power dissipation is 40mW. For the ADC, the unbuffered analog input range is 0V to +5.0V, and the buffered analog common-mode input range is 0V to +3.8V. For the DACs, the analog output range is 0V to +2.5V or 0V to +5.0V.

The AMC7820 is ideal for multichannel applications where ow power and small size are critical. The AMC7820 is available in a TQFP-48 package and is fully specified and tested over the 40°C to +85°C temperature range. SPI is a trademark of Motorola.




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